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30CrMo hot rolled round bars and forged round bars
30CrMo hot rolled round bars and forged round bars are belong to Chromium molybdenum alloy steel, 30CrMo is a kind of alloy steel in China, 30CrMo hot rolled round bars and forged round bars refer to the carbon content. They are being used to manufacture high strength bolts 10.9 S to 8.8 S. But must to test its component content before using
30CrMo hot rolled round bars and forged round bars has high strength and toughness ,high harden ability ,its critical hardening can reach to 1570 mm in coil ,and its hot strength is good. if there are enough high temperature under 500℃. 30CrMo hot rolled round bars and forged round bars are Mainly used in the manufacture some parts with large cross section, shaft, and the high load of wheel, bolts, double-headed bolts, gears, etc.
The delivery condition 30CrMo round bar are:hot rolled or forged + Normalizing+Tempering+Quenching and tempering+Normalizing and tempering+Annealing .
The size for 30CrMo round bar which available for our bebon steel are Ф 5-80 for hot rolled round bar and Ф 80-1200 for forged round bar ,the length range is from 3000 to 12000mm.
The tolerance of the diameter is -0/+3mm ,The tolerance of the length is -0/+20mm.and the straightness tolerance is ≤3mm/m
surface delivery status: black/polishing/turning
The UT standard what we can do for Chinese standard are GB/T 6402 I,II,III and export standard are SEP1921 CLASS C/C，D/D，E/E.
The more information of 30CrMo hot rolled and forged round bar shown in the following table:
30CrMo hot rolled and forged round bar Chemical composition
GRADE |
C% |
Si% |
Mn% |
P% |
S% |
Cr% |
Cu% |
Ni% |
|
30CrMo |
0.26-0.34 |
0.17-0.37 |
0.40-0.70 |
0.035 |
0.035 |
0.80-1.10 |
0.03 |
0.03 |
30CrMo hot rolled and forged round bar Mechanical properties
GRADE |
Tensile Strength min |
Yield Strength min |
Elongation min. |
contraction min |
impact min |
Hardness Max |
|
σb/M Pa |
σs/M Pa |
δ5/% |
ψ/% |
Aku2/J |
HBS |
|
|
30CrMo |
930 |
785 |
12 |
50 |
63 |
229 |
Bebon is the professional 30CrMo hot rolled and forged round bar supplier in China .If you need 30CrMo hot rolled and forged round bar , we can put the 30CrMo hot rolled and forged round bar order to our steel mill directly or collect these goods from our stock directly if we have enough ex-stock on stock .Besides. if you need any offer or if you want to know the price and any other information about 30CrMo hot rolled and forged round bar,please be free to contact us.